Inferring others' behaviors with のことだから

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The pattern Nのことだから knowing NOUN; since it's NOUN can be used when stating or implying that some sort of behavior can be inferred.

Usually the noun will refer to a person known by both the speaker and the listener.

English translations of sentences with Nのことだから will often include the word "knowing", like this:

You and your friend are planning a surprise party for your friend Jung-ah. You're talking about the possibility that she'll figure it out.

Casual

ジョンアのことだから気付きづいても気付きづかないふりしてくれそうだよね。

Knowing Jung-ah, she'd pretend not to know even if she did.

Jung-ah

・

の

・

thing

・

だ

・

から

・

even if (she) notices

・

won't notice

・

pretending

・

seems (she) will give (me)

・

だ

・

よ

・

ね

정아 (ジョンア // Jung-ah) is a Korean feminine given name.

Female Voice

Male Voice

You're planning a drinking get-together with your friend. Your friend asks, "Do you think Kaoruko would come if we invited her?"

Casual

薫子かおるこのことだから「行いけたら行いく」っつって来こないパターンでしょ。

Knowing Kaoruko, she'll probably say "I'll come if I can" and not show up.

Kaoruko

・

の

・

thing

・

だ

・

から

・

if (I) can go

・

say

・

won't come

・

pattern

・

でしょ

Female Voice

Male Voice

When you are ending the sentence with Nのことだから, the から part gets dropped:

A novel. A sentence about a missing dog.

Textbook Casual

人懐ひとなつっこいモモのことだ。誰だれかに拾ひろわれて可愛かわいがられているだろう。

Momo loves people. Someone must've picked her up and is taking good care of her.

friendly

・

Momo

・

の

・

thing

・

だ

・

somebody

・

に

・

get picked up

・

is getting treated lovingly

・

だろう

Female Voice

Male Voice